CN106257881A - A kind of multicast management method, device and switching equipment - Google Patents
A kind of multicast management method, device and switching equipment Download PDFInfo
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- CN106257881A CN106257881A CN201510340341.8A CN201510340341A CN106257881A CN 106257881 A CN106257881 A CN 106257881A CN 201510340341 A CN201510340341 A CN 201510340341A CN 106257881 A CN106257881 A CN 106257881A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/02—Details
- H04L12/16—Arrangements for providing special services to substations
- H04L12/18—Arrangements for providing special services to substations for broadcast or conference, e.g. multicast
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L63/00—Network architectures or network communication protocols for network security
- H04L63/10—Network architectures or network communication protocols for network security for controlling access to devices or network resources
- H04L63/101—Access control lists [ACL]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L47/00—Traffic control in data switching networks
- H04L47/10—Flow control; Congestion control
- H04L47/32—Flow control; Congestion control by discarding or delaying data units, e.g. packets or frames
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L47/00—Traffic control in data switching networks
- H04L47/70—Admission control; Resource allocation
- H04L47/80—Actions related to the user profile or the type of traffic
- H04L47/805—QOS or priority aware
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L47/00—Traffic control in data switching networks
- H04L47/70—Admission control; Resource allocation
- H04L47/80—Actions related to the user profile or the type of traffic
- H04L47/806—Broadcast or multicast traffic
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Computer Hardware Design (AREA)
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Abstract
The embodiment provides a kind of multicast management method, device and switching equipment, wherein this multicast management method includes: receive the data stream of multiple multicast source；List is controlled according to the access pre-set, determining the transmission priority of the data stream of each multicast source in the data stream of multiple multicast source, accessing of pre-setting controls record in list the source address of data stream of each multicast source, destination address and transmission priority；The transmission priority of the data stream according to each multicast source, determines the transmission order of the data stream of multiple multicast source, and forwards the data stream of multiple multicast source according to transmission order.Embodiments of the invention can be transmitted the appointment of priority to the different multicast sources in multicast group, and according to sending the data stream of the priority order multiple multicast sources of forwarding from high to low, prevent abandoning of data stream, thus improve data transmission quality.
Description
Technical field
The present invention relates to communication technical field, particularly to a kind of multicast management method, device and switching equipment.
Background technology
Multicast is one of agreement (IP) network data transmission mode of interconnection between network, and it achieves transmission
Point-to-multipoint between person and recipient, how point-to-point or multi-multipoint network connect, its appearance solution
Certainly clean culture and the inefficient problem of broadcast transmission methods, and it is widely used in video, game, media broadcast
In field.
Internet Group Management Protocol (IGMP, Internet Group Management Protocol) is network
Being responsible for the agreement of IP multicast member management in communications protocol (TCP/IP) protocol suite, it is used for IP master
Set up between machine and the most adjacent multicast router, safeguard multicast group membership.Along with multicast skill
Being widely used of art, multicast protocol is also in constantly upgrading.IGMP V3 increases on the basis of IGMP V2
Add multicasting source filtering function, made multicast member can actively select to receive or refuse the number from specific multicast source
According to stream.
Multicasting technology there is also many an open questions such as congestion control and safety at present.As it is shown in figure 1,
Switching equipment maintains the forwarding relation of multicast group G1, only allows multicast source S1 and S2 of multicast group G1
Multicast traffic stream be forwarded to member port P1, when S1 and S2 data traffic less than P1 port turn
During the ability of sending out, multicast data flow can normally be forwarded by switching equipment, but when the total flow of S1 Yu S2 surpasses
When having crossed the forwarding bandwidth of P1, it will go out interruption-forming at P1 congested, now the losing of S1 with S2 data stream
The behavior of abandoning will become uncontrollable, has a strong impact on data transmission quality.In addition, it is assumed that when multicast source S1 is subject to
During to network attack, controlling the propagation of virus without effective means, consequence is by hardly imaginable.
Summary of the invention
The purpose of the embodiment of the present invention is to provide a kind of multicast management method, device and switching equipment, can be right
Different multicast sources in multicast group are transmitted the appointment of priority, and according to sending priority from high to low
Order forwards the data stream of multiple multicast source, prevents abandoning of data stream, thus improves data transmission quality.
In order to achieve the above object, The embodiment provides a kind of multicast management method, be applied to hand over
Exchange device, this multicast management method includes:
Receive the data stream of multiple multicast source；
Control list according to the access pre-set, determine each multicast source in the data stream of multiple multicast source
The transmission priority of data stream, accessing of pre-setting controls record in list the data of each multicast source
Source address, destination address and the transmission priority of stream；
The transmission priority of the data stream according to each multicast source, determines the transmission of the data stream of multiple multicast source
Sequentially, the data stream of multiple multicast source and is forwarded according to transmission order.
Wherein, send the service quality that priority is data stream according to each multicast source to determine, the most often
The service quality of the data stream of individual multicast source is the highest, and the transmission priority of the data stream of each multicast source is the biggest.
Wherein, accessing of pre-setting controls also to record in list have the switching equipment data stream to multicast source
Operation, multicast management method also includes:
If switching equipment to the operation of the data stream of multicast source for abandoning operation, then at the number carrying out multicast source
When sending out according to circulation, directly the data stream of the multicast source corresponding with abandoning operation is abandoned, and do not forward.
Wherein, multicast management method also includes:
If multicast source exists potential safety hazard, then in accessing control list, switching equipment is the most hidden to there is safety
The operation setting of the data stream of the multicast source suffered from is for abandoning operation.
Wherein, according to the transmission priority of the data stream of each multicast source, the data stream of multiple multicast source is determined
Transmission order, and forward the data stream of multiple multicast source according to transmission order, particularly as follows:
The transmission priority of the data stream according to each multicast source, according to sending priority order from high to low
Forward the data stream of multiple multicast source.
Embodiments of the invention additionally provide a kind of multicast management device, are applied to switching equipment, this multicast pipe
Reason device includes:
Receiver module, for receiving the data stream of multiple multicast source；
First determines module, for controlling list according to the access pre-set, determines the number of multiple multicast source
According to the transmission priority of the data stream of each multicast source in stream, the access pre-set controls record in list
There are the source address of data stream of each multicast source, destination address and transmission priority；
Second determines module, for the transmission priority of the data stream according to each multicast source, determines multiple groups
Broadcast the transmission order of the data stream in source, and forward the data stream of multiple multicast source according to transmission order.
Wherein, send the service quality that priority is data stream according to each multicast source to determine, the most often
The service quality of the data stream of individual multicast source is the highest, and the transmission priority of the data stream of each multicast source is the biggest.
Wherein, accessing of pre-setting controls also to record in list have the switching equipment data stream to multicast source
Operation, multicast management device also includes:
Discard module, if for switching equipment to the operation of the data stream of multicast source for abandoning operation, entered
During the forwarding data flow of row multicast source, directly the data stream of the multicast source corresponding with abandoning operation is abandoned, and
Do not forward.
Wherein, multicast management device also includes:
Module being set, if there is potential safety hazard for multicast source, controlling switching equipment in list accessing
To the operation setting of the data stream of the multicast source that there is potential safety hazard for abandoning operation.
Wherein, second determines that module includes:
Retransmission unit, for the transmission priority of the data stream according to each multicast source, according to sending priority
Order from high to low forwards the data stream of multiple multicast sources.
Embodiments of the invention additionally provide a kind of switching equipment, including above-mentioned multicast management device.
The such scheme of the present invention at least includes following beneficial effect:
In an embodiment of the present invention, by the number accessing each multicast source controlled in list pre-set
According to the transmission priority of stream, determine the transmission of data stream of the multiple multicast sources received sequentially, and according to
This transmission order forwards the data stream of multiple multicast source, when solving switching equipment transmitting data flow it may happen that
Congested, cause data stream to lose, the problem having a strong impact on data transmission quality, reach preferential according to sending
Level order from high to low forwards the data stream of multiple multicast sources, prevents abandoning of data stream, and then improves number
Effect according to transmission quality.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of IGMP V3 multicasting source filtering function in prior art；
Fig. 2 is the flow chart of multicast management method in first embodiment of the invention；
Fig. 3 is the schematic diagram that in first embodiment of the invention, IGMP V3 multicast forwarding information is set up；
Fig. 4 is that in first embodiment of the invention, P1 port multicast streaming quality sends showing of priority scheduling
It is intended to；
Fig. 5 is the structural representation of multicast management device in second embodiment of the invention.
Detailed description of the invention
It is more fully described the exemplary embodiment of the disclosure below with reference to accompanying drawings.Although accompanying drawing shows
The exemplary embodiment of the disclosure, it being understood, however, that may be realized in various forms the disclosure and should be by
Embodiments set forth here is limited.On the contrary, it is provided that these embodiments are able to be best understood from this
Open, and complete for the scope of the present disclosure can be conveyed to those skilled in the art.
First embodiment
As in figure 2 it is shown, the first embodiment of the present invention provides a kind of multicast management method, it is applied to exchange
Equipment, this multicast management method includes:
Step S21, receives the data stream of multiple multicast source；
Step S22, controls list according to the access pre-set, determines in the data stream of multiple multicast source
The transmission priority of the data stream of each multicast source, the access pre-set controls record in list each group
Broadcast the source address of data stream in source, destination address and transmission priority；
In the first embodiment of the present invention, sending priority can be according to the reality of the data stream of each multicast source
Border service quality determines, and the service quality of the data stream of multicast source is the highest, the transmission of the data stream of multicast source
Priority is the biggest, and certainly sending priority can also determine according to the self-demand of user.
Step S23, according to the transmission priority of the data stream of each multicast source, determines the number of multiple multicast source
According to the transmission order of stream, and forward the data stream of multiple multicast source according to transmission order.
In the first embodiment of the present invention, as it is shown on figure 3, as a example by host A and multicast group G1, explain
Stating the access in step S22 and control the method to set up of list (ACL), this method to set up specifically includes:
The first step, host A actively sends IGMP V3 member relation report by port P1 to switching equipment
Accuse message and require to add multicast group G1, and specify reception from the multicast source S in multicast group G11、S2、、、
SnData stream.
Second step, switching equipment, after receiving the report message of host A, adds at multicast forwarding the exterior and the interior
A plurality of as shown in table 1 based on multicast source (S1、S2、、、Sn) multicast forwarding item.
| Source IP address | Multicast ip address | Forward port |
| S1 | G1 | P1 |
| S2 | G1 | P1 |
| … | G1 | P1 |
| Sn | G1 | P1 |
Table 1
3rd step, it is assumed herein that multicast source S1Data flow ratio multicast source S2The quality of data stream more excellent, group
Broadcast source S2Data stream more excellent than the quality of the data stream of other multicast sources again, according on management plane arrange
S1、S2、、、SnDispatching priority, S1Dispatching priority be 7, S2Dispatching priority be 6,
The dispatching priority of other multicast sources is 1 (IPV4 priority level is 0～7), increases on the control plane
Acl rule as shown in table 2.
Table 2
4th step, when multicast source (is assumed to be multicast source S2) when there is potential safety hazard, then it is multicast source S2's
Set up a new acl rule, will switching equipment to multicast source S2The operation setting of data stream for losing
Abandon operation so that switching equipment is receiving multicast source S2Data stream time, do not forward, directly lost
Abandon, it is to avoid the propagation of virus.It is understood that as multicast source S2When recovering normal, delete correspondence
Acl rule, makes multicast source S2Data stream normal transmission in a network.
In the first embodiment of the present invention, access, by pre-set, each multicast source controlled in list
The transmission priority of data stream, determine the transmission order of the data stream of the multiple multicast sources received, and
The data stream of multiple multicast source is forwarded, so that switching equipment can turn according to transmission order according to this transmission order
The data stream sending out multicast source multiple, prevents abandoning of data stream, efficiently solves switching equipment and is forwarding data
Occur congested (such as when switching equipment receives multicast source S simultaneously during stream1、S2、S3Data stream time, due to
The total bandwidth of three data streams is more than the bandwidth (500M+400M+300M > 1000M) of P1 port, this
Time produce congested inevitable) problem, and then improve the effect of data transmission quality.
Wherein, in the first embodiment of the present invention, in above-mentioned ACL, record has switching equipment to multicast source
The operation of data stream, if therefore switching equipment to the operation of the data stream of multicast source for abandoning operation, then
When carrying out the forwarding data flow of multicast source, directly the data stream of the multicast source corresponding with abandoning operation is abandoned,
And do not forward.Such as in ACL table, record has switching equipment to multicast source S2The operation of data stream
For abandoning operation, so receive multicast source S when switching equipment2Data stream time, can directly be abandoned,
It will not be forwarded.
In the first embodiment of the present invention, if multicast source (such as multicast source S2) there is potential safety hazard,
Then set accessing the operation controlling in list the data stream by the switching equipment multicast source to there is potential safety hazard
It is set to abandon operation, the most just can efficiently control the propagation of virus.If this multicast source (such as group certainly
Broadcast source S2) when recovering normal, corresponding acl rule can be deleted, make this multicast source (such as multicast source S2)
Data stream can normal transmission in a network.
Wherein, in the first embodiment of the present invention, above-mentioned steps S23 is particularly as follows: according to each multicast source
The transmission priority of data stream, according to the number sending priority order from high to low and forwarding multiple multicast sources
According to stream.
In the first embodiment of the present invention, also illustrative step as a example by each multicast source of above-mentioned multicast group G1
The detailed process of S23, as shown in Figure 4, switching equipment receives multicast source S1、S2、S3Data stream after,
Can be according to the transmission priority in ACL by multicast source S1、S2、S3Data stream scheduling to corresponding queue
In.At this as a example by scheduling mode with strict-priority (SP, Strict Priority), send preferential
Level 0～7 the most corresponding queue Queue 0～7, therefore S1Data stream enter Queue 7, S2Data stream
Enter Queue 6, S3Data stream enter Queue 1.And when queue scheduling, SP can be in strict accordance with sending out
Priority order from high to low is sent preferentially to send the higher packet sent in priority query, when higher transmission
When priority query is empty, retransmiting the relatively low packet sent in priority query, queue sends priority more
Height, data stream therein is the most preferential, therefore from multicast source S1Data stream will turn from P1 port at first
Send out.
Second embodiment
A kind of multicast management device provided for second embodiment of the invention below.Described multicast management device
Embodiment and above-mentioned embodiment of the method belong to same design, the most detailed in the embodiment of multicast management device retouch
The detail content stated, is referred to said method embodiment.
As it is shown in figure 5, the second embodiment of the present invention provides a kind of multicast management device, it is applied to exchange
Equipment, this multicast management device includes:
Receiver module 51, for receiving the data stream of multiple multicast source；
First determines module 52, for controlling list according to the access pre-set, determines multiple multicast source
Data stream in the transmission priority of data stream of each multicast source, the access pre-set controls in list
Record has the source address of data stream of each multicast source, destination address and transmission priority；
Second determines module 53, for the transmission priority of the data stream according to each multicast source, determines many
The transmission order of the data stream of individual multicast source, and the data stream of multiple multicast source is forwarded according to transmission order.
Wherein, send the service quality that priority is data stream according to each multicast source to determine, the most often
The service quality of the data stream of individual multicast source is the highest, and the transmission priority of the data stream of each multicast source is the biggest.
Wherein, accessing of pre-setting controls also to record in list have the switching equipment data stream to multicast source
Operation, multicast management device also includes:
Discard module, if for switching equipment to the operation of the data stream of multicast source for abandoning operation, entered
During the forwarding data flow of row multicast source, directly the data stream of the multicast source corresponding with abandoning operation is abandoned, and
Do not forward.
Wherein, multicast management device also includes:
Module being set, if there is potential safety hazard for multicast source, controlling switching equipment in list accessing
To the operation setting of the data stream of the multicast source that there is potential safety hazard for abandoning operation.
Wherein, second determines that module 53 includes:
Retransmission unit, for the transmission priority of the data stream according to each multicast source, according to sending priority
Order from high to low forwards the data stream of multiple multicast sources.
In the second embodiment of the present invention, multicast management device can control list by the access pre-set
In the transmission priority of data stream of each multicast source, determine the data stream of the multiple multicast sources received
Transmission order, and forward the data stream of multiple multicast source according to this transmission order, so that switching equipment energy
Forward the data stream of multiple multicast source according to transmission order, prevent abandoning of data stream, efficiently solve exchange
There is congested problem when transmitting data flow in equipment, and then improves the effect of data transmission quality.
It should be noted that the multicast management device that second embodiment of the invention provides should be in aforementioned manners
All embodiments of device, i.e. said method are all applicable to this device, and all can reach same or analogous and have
Benefit effect.
3rd embodiment
The third embodiment of the present invention provides a kind of switching equipment, including above-mentioned multicast management device.
It should be noted that the switching equipment that third embodiment of the invention provides is to apply above-mentioned multicast management dress
The switching equipment put, all embodiments of the most above-mentioned multicast management device are all applicable to this switching equipment, and all
Same or analogous beneficial effect can be reached.
The above is the preferred embodiment of the present invention, it is noted that for the common skill of the art
For art personnel, on the premise of without departing from principle of the present invention, it is also possible to make some improvements and modifications,
These improvements and modifications also should be regarded as protection scope of the present invention.
Claims (11)
1. a multicast management method, is applied to switching equipment, it is characterised in that described multicast management side
Method includes:
Receive the data stream of multiple multicast source；
Control list according to the access pre-set, determine each group in the data stream of the plurality of multicast source
Broadcast the transmission priority of the data stream in source, described in the access that pre-sets control record in list and have each multicast
The source address of data stream in source, destination address and transmission priority；
The transmission priority of the data stream according to described each multicast source, determines the data of the plurality of multicast source
The transmission order of stream, and the data stream of the plurality of multicast source is forwarded according to described transmission order.
2. multicast management method as claimed in claim 1, it is characterised in that described transmission priority is
The service quality of the data stream according to each multicast source determines, the data stream of wherein said each multicast source
Service quality is the highest, and the transmission priority of the data stream of described each multicast source is the biggest.
3. multicast management method as claimed in claim 1, it is characterised in that described in the visit that pre-sets
Ask that in control list, also record has the switching equipment operation to the data stream of multicast source, described multicast management method
Also include:
If switching equipment to the operation of the data stream of multicast source for abandoning operation, then at the number carrying out multicast source
When sending out according to circulation, directly will abandon with the described data stream abandoning multicast source corresponding to operation, and do not carry out turning
Send out.
4. multicast management method as claimed in claim 3, it is characterised in that described multicast management method
Also include:
If multicast source exists potential safety hazard, then in accessing control list, switching equipment is the most hidden to there is safety
The operation setting of the data stream of the multicast source suffered from is for abandoning operation.
5. multicast management method as claimed in claim 1, it is characterised in that described according to described each
The transmission priority of the data stream of multicast source, determines the transmission order of the data stream of the plurality of multicast source, and
The data stream of the plurality of multicast source is forwarded according to described transmission order, particularly as follows:
The transmission priority of the data stream according to described each multicast source, according to sending priority from high to low
Order forwards the data stream of the plurality of multicast source.
6. a multicast management device, is applied to switching equipment, it is characterised in that described multicast management fills
Put and include:
Receiver module, for receiving the data stream of multiple multicast source；
First determines module, for controlling list according to the access pre-set, determines the plurality of multicast source
Data stream in the transmission priority of data stream of each multicast source, described in the access that pre-sets control row
In table, record has the source address of data stream of each multicast source, destination address and transmission priority；
Second determines module, for the transmission priority of the data stream according to described each multicast source, determines institute
State the transmission order of the data stream of multiple multicast source, and forward the plurality of multicast source according to described transmission order
Data stream.
7. multicast management device as claimed in claim 6, it is characterised in that described transmission priority is
The service quality of the data stream according to each multicast source determines, the data stream of wherein said each multicast source
Service quality is the highest, and the transmission priority of the data stream of described each multicast source is the biggest.
8. multicast management device as claimed in claim 6, it is characterised in that described in the visit that pre-sets
Ask that in control list, also record has the switching equipment operation to the data stream of multicast source, described multicast management device
Also include:
Discard module, if for switching equipment to the operation of the data stream of multicast source for abandoning operation, entered
During the forwarding data flow of row multicast source, directly will abandon with the described data stream abandoning multicast source corresponding to operation,
And do not forward.
9. multicast management device as claimed in claim 8, it is characterised in that described multicast management device
Also include:
Module being set, if there is potential safety hazard for multicast source, controlling switching equipment in list accessing
To the operation setting of the data stream of the multicast source that there is potential safety hazard for abandoning operation.
10. multicast management device as claimed in claim 6, it is characterised in that described second determines module
Including:
Retransmission unit, for the transmission priority of the data stream according to described each multicast source, excellent according to sending
First level order from high to low forwards the data stream of the plurality of multicast source.
11. 1 kinds of switching equipment, it is characterised in that include the multicast as described in any one of claim 6～10
Managing device.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510340341.8A CN106257881A (en) | 2015-06-18 | 2015-06-18 | A kind of multicast management method, device and switching equipment |
| PCT/CN2016/079916 WO2016202087A1 (en) | 2015-06-18 | 2016-04-21 | Multicast management method, apparatus, and switching device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510340341.8A CN106257881A (en) | 2015-06-18 | 2015-06-18 | A kind of multicast management method, device and switching equipment |
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| CN106257881A true CN106257881A (en) | 2016-12-28 |
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| CN201510340341.8A Pending CN106257881A (en) | 2015-06-18 | 2015-06-18 | A kind of multicast management method, device and switching equipment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112118193A (en) * | 2020-08-27 | 2020-12-22 | 新华三技术有限公司 | Method, device and network equipment for forwarding multicast |
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| CN104125161A (en) * | 2014-08-14 | 2014-10-29 | 三星电子（中国）研发中心 | Data priority distinguishing multicast transmission method, data priority distinguishing multicast transmission system and data priority distinguishing multicast transmission device |
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- 2015-06-18 CN CN201510340341.8A patent/CN106257881A/en active Pending
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- 2016-04-21 WO PCT/CN2016/079916 patent/WO2016202087A1/en active Application Filing
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| CN1889558A (en) * | 2006-07-20 | 2007-01-03 | 华为技术有限公司 | Program channel difference processing method in IPIV bearing network |
| US8121133B2 (en) * | 2008-05-15 | 2012-02-21 | Cisco Technology, Inc. | Stream regulation in a peer to peer network |
| CN102257764A (en) * | 2008-12-16 | 2011-11-23 | 阿尔卡特朗讯公司 | Multicast quality of service module and method |
| CN104125161A (en) * | 2014-08-14 | 2014-10-29 | 三星电子（中国）研发中心 | Data priority distinguishing multicast transmission method, data priority distinguishing multicast transmission system and data priority distinguishing multicast transmission device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112118193A (en) * | 2020-08-27 | 2020-12-22 | 新华三技术有限公司 | Method, device and network equipment for forwarding multicast |
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| WO2016202087A1 (en) | 2016-12-22 |
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